This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD63X25 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD63X25 in place of this model. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SUD Series Double Rod Cylinder SUD63X25
The AirTAC Airtac SUD Series Double Rod Cylinder SUD63X25 is a double-acting profile-type standard cylinder with a Ø63mm bore and 25mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD63X25, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke25 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD63X25
About the Airtac SUD Series Double Rod Cylinder SUD63X25
The AirTAC SUD63X25 is a double-acting, double-rod profile cylinder that is officially discontinued. The exact drop-in replacement is the SAUD63X25, matching the 63mm bore, 25mm stroke, 3/8" port, and mounting. A rod exits both ends on one piston, meaning push and pull force are equal both ways at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore.
Because both faces use the rod-side area, the back rod can drive a second tool or carry a sensor cam without requiring a larger body. For sizing, the 1402 N @0.5 MPa force yields a safe working load of roughly 841 N, translating to a vertical lift capacity of about 71 kg with a 2:1 margin. Note this non-magnetic SKU cannot take a switch, and the SAUD upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. The piston drifts on air loss, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD63X25 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD63X25 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD63X25 |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD63X25 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAUD63X25 produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUD Series Double Rod Cylinder SUD63X25
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SUD Series Double Rod Cylinder SUD63X25 Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously using both rod ends, ensuring perfectly synchronized part processing.
Anti-Rotation Transfer Unit
The twin-rod geometry prevents piston rotation during short 25mm clamping strokes, maintaining precise alignment without external guides.
Symmetrical Diverting Gate
Pushes a diverter gate from either side with equal 1402 N force at 0.5 MPa, keeping product flow centered on the belt.
Replacing the Airtac SUD Series Double Rod Cylinder SUD63X25 with the SAUD63X25
To replace the SUD63X25, order the SAUD63X25; it is a drop-in fit with the same 3/8" port, M16x1.5 rod thread, and FA/LB mounting. Size both ways by checking neighbor bores while confirming the equal-both-ways force fits your load. A double rod is right when you need anti-rotation stability or must drive two tools from one cylinder. If upgrading to the SAUD with the -S sensor option, you must switch from the old CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. For this 25mm stroke, side-load is minimal, but for any stroke >=300mm, add a guide to prevent binding. Remember, the air cushion only decelerates; it does not hold loads without live air.
Replacement checklist
- ✓ Same bore / stroke → SAUD63X25
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SUD Series Double Rod Cylinder SUD63X25 FAQ
Yes, the SUD63X25 is discontinued. The exact drop-in replacement is the SAUD63X25, which shares the same 63mm bore, 25mm stroke, 3/8" port, and FA/LB mounting. The SAUD also offers the SAUF built-in-valve variant the SU line lacked.
Because it is a double-rod cylinder, force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. The air port is 3/8". This yields a safe working load of about 841 N and a vertical lift capacity of 71 kg with a 2:1 margin.
Request a Quote for the SAUD63X25
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD63X25 replacement — usually within 7-8 hours.